Seiko Cal. 5610 - 888

This Spring Drive model from 1975 features a 40mm Hardlex-Coated Steel case. It features a Black dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-12956a4ee4ad]

Also known as: Sumo, Pogue

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1975

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